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A skateboard ramp has a rise of 15 inches and a run of 54 inches. What is its slope ?. rise. slope =. run. 5. 5. 15. 18. 18. =. =. 54. ANSWER. The slope of the ramp is. EXAMPLE 1. Find slope in real life. Skateboarding. SOLUTION. m =. y 2 – y 1. –1 – 3. =. x 2 – x 1.
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A skateboard ramp has a rise of 15 inches and a run of 54 inches. What is its slope? rise slope = run 5 5 15 18 18 = = 54 ANSWER . The slope of the ramp is EXAMPLE 1 Find slope in real life Skateboarding SOLUTION
m = y2–y1 –1 –3 = x2–x1 2–(–1) 4 ANSWER 3 = The correct answer is A. EXAMPLE 2 Standardized Test Practice SOLUTION Let (x1, y1) =(–1, 3) and (x2,y2)=(2, –1).
2 9 ANSWER . The slope of the ramp is for Examples 1 and 2 GUIDED PRACTICE 1. What If ? In Example 1, suppose that the rise of the ramp is changed to 12 inches without changing the run. What is the slope of the ramp?
2. What is the slope of the line passing through the points (–4, 9) and (–8, 3) ? ANSWER The correct answer is D. for Examples 1 and 2 GUIDED PRACTICE
– 1 5 1 1 – 2 2 3 4 ANSWER ANSWER ANSWER ANSWER for Examples 1 and 2 GUIDED PRACTICE Find the slope of the line passing through the given points. 3. (0, 3), (4, 8) 5. (–3, –2), (6, 1) 4. (– 5, 1), (5, – 4) 6. (7, 3), (–1, 7)